Learning to detect a tone in unpredictable noise.

Pete R Jones, David R Moore, Daniel E Shub, Sygal Amitay

    Research output: Contribution to journalArticlepeer-review


    Eight normal-hearing listeners practiced a tone-detection task in which a 1-kHz target was masked by a spectrally unpredictable multitone complex. Consistent learning was observed, with mean masking decreasing by 6.4 dB over five sessions (4500 trials). Reverse-correlation was used to estimate how listeners weighted each spectral region. Weight-vectors approximated the ideal more closely after practice, indicating that listeners were learning to attend selectively to the task relevant information. Once changes in weights were accounted for, no changes in internal noise (psychometric slope) were observed. It is concluded that this task elicits robust learning, which can be understood primarily as improved selective attention.
    Original languageEnglish
    JournalThe Journal of the Acoustical Society of America
    Issue number3
    Publication statusPublished - Mar 2014


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